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Head-to-head Updated

Kumho Ecsta PS31 vs Bridgestone Potenza RE040 — Compared

Relative Score (0–100): 60% professional tests, 40% owner reviews.

Ecsta PS31 is ahead, 65–55

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Tire AKumho

Ecsta PS31

Summer

Tests – · none yet Owners 64 · 259 reviews

Category by category

Relative Score per category, 0–100. Open “Why this score” for the tests and owner ratings behind it.

  1. 64

    Dry

    Ecsta PS31 +6
    58
    Why this score
    SourceEcsta PS31Potenza RE040
    Reviews found online6352
  2. 69

    Wet

    Ecsta PS31 +15
    54
    Why this score
    SourceEcsta PS31Potenza RE040
    Reviews found online6848
  3. 57

    Snow

    Ecsta PS31 +7
    50
    Why this score
    SourceEcsta PS31Potenza RE040
    Reviews found online4937
  4. 67

    Comfort

    Ecsta PS31 +11
    56
    Why this score
    SourceEcsta PS31Potenza RE040
    Reviews found online6542
  5. 66

    Noise

    Ecsta PS31 +10
    56
    Why this score
    SourceEcsta PS31Potenza RE040
    Reviews found online6640
  6. 65

    Treadwear

    Ecsta PS31 +10
    55
    Why this score
    SourceEcsta PS31Potenza RE040
    Reviews found online6547
  7. 67

    Handling

    Ecsta PS31 +14
    53
    Why this score
    SourceEcsta PS31Potenza RE040
    Reviews found online6753
Scores at a glance
CategoryKumho Ecsta PS31Bridgestone Potenza RE040
Relative Score 65 55
Dry 64 58
Wet 69 54
Snow 57 50
Comfort 67 56
Noise 66 56
Treadwear 65 55
Handling 67 53

Higher is better. The Relative Score follows your weights below; category scores do not change.

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Wet grip and treadwear start at “Important” — the two things buyers rank highest. Move the sliders and the scores update instantly.

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Recomputed
Headline score

Ecsta PS31

Potenza RE040

Pros, cons & observations

Themes extracted from owner reviews found online — not the opinion of TireWheelGuide.

Tire A Ecsta PS31

Pros

  • Excellent price-to-performance ratio
  • High levels of ride comfort and low road noise
  • Strong dry traction for daily and spirited street driving

Cons

  • Soft sidewalls lead to vague steering response and 'squirm' during aggressive maneuvers
  • Inconsistent wet weather performance reported by some users, particularly in deep standing water
  • Tread life can be shorter than expected for some driving styles
All owner themes in the Ecsta PS31 review

Tire B Potenza RE040

Pros

  • Excellent dry weather grip and handling
  • High level of steering feedback and directness
  • Progressive and predictable breakaway characteristics

Cons

  • Excessive and intrusive road noise
  • Poor performance and lack of confidence in wet or cold conditions
  • Harsh ride quality due to stiff construction
All owner themes in the Potenza RE040 review

Specs side by side

Attribute A · Kumho Ecsta PS31 B · Bridgestone Potenza RE040
CategorySummerSummer
Vehicle typePassenger Car / CrossoverPassenger Car / Crossover
Sizes available213
Rim diameters15″ – 18″16″ – 18″
Tread depth10/32″10/32″
UTQG460 A A140 A A
SidewallBlackwallBlackwall
Max pressure51 psi—

Which one should you actually buy?

Kumho Ecsta PS31

Bridgestone Potenza RE040

Winner: Kumho Ecsta PS31 — better wet, handling and comfort. It leads or ties in every category we score.

Pick tire A Your priority is wet-weather safety

Kumho Ecsta PS31 scores 69 vs 54 on wet.

Pick tire A You enjoy sharp, responsive handling

Kumho Ecsta PS31 scores 67 vs 53 on handling.

Pick tire A You want the most comfortable ride

Kumho Ecsta PS31 scores 67 vs 56 on comfort.

Pick tire A You want a quieter cabin

Kumho Ecsta PS31 scores 66 vs 56 on noise.

Tire A · Kumho Ecsta PS31
Check price on Amazon
Tire B · Bridgestone Potenza RE040
Check price on Amazon

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How do we compare tires?

Every category score blends two independent signals. 60% comes from professional tire tests (braking distances, lap times, noise measurements), each result compared with every other tire in the same test and newer tests counting more. 40% comes from owner reviews found online, adjusted for how generously each site rates. Both use one scale: the average tested tire gets 70, the best 100. When a tire has only one of the two, the missing half is estimated from the other and the score stays closer to average; with no road test and fewer than five owner reviews it gets no score yet.

Community buzz from Reddit and forums is shown for context only — it never changes the score.

65

Leads

Ecsta PS31

Amazon